The origin of the "to be" + preterite participle perfect periphrase in Germanic:
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Bibliographic Details
Main Author: Davis, Garry W. (Author)
Format: Microfilm Book
Language:Undetermined
Published: 1986
Subjects:
Item Description:Ann Arbor <Mich.>, Univ. of Michigan, Diss. - Kopie, erschienen im Verl. Univ. Microfilms Internat., Ann Arbor, Mich.
Physical Description:VI, 154 S. auf 2 Mikrofiches

There is no print copy available.

Interlibrary loan Place Request Caution: Not in THWS collection!